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2022-10-19: The Equation That Explains (Nearly) Everything!

  • 01:48: ... forces of nature in terms of gauge symmetries. And they succeeded. The weak interaction arises from a slightly more complicated SU(2) symmetry, while the strong ...

2022-04-27: How the Higgs Mechanism Give Things Mass

  • 03:36: ... the next episode we tried the same  trick to explain the weak interaction   as arising from symmetries. We saw that we could  invent a pair of ...
  • 15:06: ... gain  mass and become the two W and one Z bosons of the   weak interaction. The fourth boson manages to escape  unscathed and massless, ...

2022-03-16: What If Charge is NOT Fundamental?

  • 10:52: To fully explain weak interactions we need a second charge - this one carried by the Z boson.

2021-01-26: Is Dark Matter Made of Particles?

  • 11:25: But a WIMP, with its extremely weak interaction, would more easily dodge its antimatter buddy - and so countless may have survived to this day.
  • 11:45: And that interaction strength is about the same as the weak interaction.

2020-11-18: The Arrow of Time and How to Reverse It

  • 10:58: ... went thorugh another phase transition - a vacuum decay - then the weak interaction would fundamentally change - to become a different force with different ...

2020-11-04: Electroweak Theory and the Origin of the Fundamental Forces

  • 00:57: Let’s start with the mysterious and often misunderstood weak interaction.
  • 02:10: Fermi was motivated by the apparent extreme short range of the interaction - and that short range is what earned it the name “weak” interaction.
  • 02:19: But Fermi’s model only worked at low energies, and neither it nor its successors explain why the weak interaction violates charge-parity symmetry.
  • 03:06: In 1957, Julian Schwinger proposed a set of force mediating gauge bosons for the weak interaction.
  • 03:12: Given that the weak interaction could change a neutral particle into a pair of charged particles this mediating particle must itself be charged.
  • 04:02: Anyway, this new gauge theory of the weak interaction seemed to be okay with parity violation, and it wasn’t only accurate at low energies.
  • 11:14: Well remember that I said that the weak interaction somehow seems to involve electromagnetism?

2020-08-10: Theory of Everything Controversies: Livestream

  • 00:00: ... said that advice is every once in a while think a little bit about the weak interactions and then he smiled and he said that really worked for me and and i ...

2020-02-11: Are Axions Dark Matter?

  • 11:08: ... all the right properties - no direction interaction with light, and only weak interactions via the other forces. And although these particles are extremely light, ...

2019-01-16: Our Antimatter, Mirrored, Time-Reversed Universe

  • 03:02: ... of the standard model the great parity violating process is the weak interaction which only affects left chiral fermions right chiral fermions don't feel ...

2018-12-12: Quantum Physics in a Mirror Universe

  • 00:02: ... theta are the same particle which turns out to be the K on and that the weak interaction which governs this decay does not concern parity but how to test this Yi ...

2018-07-11: Quantum Invariance & The Origin of The Standard Model

  • 10:12: These are, the gauge bosons, the photon for electromagnetism, the W and Z bosons for the weak interaction, and the gluon for the strong interaction.

2018-07-04: Will A New Neutrino Change The Standard Model?

  • 01:00: They don't even interact via the weak interaction.
  • 05:46: Every neutrino we've ever observed was spotted using the weak interaction.
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